CN207608477U - A kind of ecological blanket of in-situ immobilization polluted bed mud - Google Patents
A kind of ecological blanket of in-situ immobilization polluted bed mud Download PDFInfo
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- CN207608477U CN207608477U CN201721655516.5U CN201721655516U CN207608477U CN 207608477 U CN207608477 U CN 207608477U CN 201721655516 U CN201721655516 U CN 201721655516U CN 207608477 U CN207608477 U CN 207608477U
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Abstract
The utility model discloses a kind of ecological blankets of in-situ immobilization polluted bed mud, belong to riverbed pollution process field, it is intended to isolation bed mud and water body, prevent pollutant in bed mud from being spread to water body, its key points of the technical solution are that the submerged plant system is provided with geotextiles away from the side of nutrient layer, the geotextiles are fixedly installed bentonite bed away from the side of nutrient layer, the ecological blanket width direction is provided at both ends with the wedge-shaped bending for connecting adjacent two ecological blankets, it is fixedly installed in the wedge shape bending and the matched connection bending of wedge-shaped bending, overlap joint contradicts between adjacent two ecological blankets and the connection bending of adjacent end portion is fastened.The utility model solves the problems, such as that some of the contaminants in bed mud can be spread to water body.
Description
Technical field
The utility model is related to riverbeds to pollute process field, more particularly to a kind of ecological blanket of in-situ immobilization polluted bed mud.
Background technology
The seriously polluted of water resource affects daily life, is gathered in river, river, lake and Reservoir Sediment a large amount of
Pollutant, such as nitrogen, phosphorus, heavy metal and hardly degraded organic substance.Important component of the bed mud as water body is carried out with water body
Complicated mass exchange, is continued to water body and external diffusion by the pollutants in sediments of solidification and stabilization, formation is polluted again.Cause
This, the reparation effect of bed mud plays the role of close with water correction, and developing effective recovery technique becomes particularly important.
The recovery technique of sediment pollution is broadly divided into based technique for in-situ remediation and showering technology, and Sediment Dredging isotonic is repaiied
Recovering technology is of high cost, quantities is big, and the cost of based technique for in-situ remediation is low, easy to operate, processing area is big, thus receives favor.
Using the peripheral doses technology in situ of cover type, polluted bed mud can be isolated with water body, effectively prevents pollutants in sediments to water body
Middle migration still because of the poor compatibility of covering, especially has stronger destructive power to benthon, make the application of the method by
To certain limitation.
Authorization Notice No.：CN206337131U discloses a kind of ecological blanket of in-situ immobilization polluted bed mud, the ecological blanket
Include from top to bottom：Generating layer, active layer, carrier layer are planted in surface layer, and ecological blanket edge or inside, which have, to be fixed on riverbed
Fixing piece.The pollutant for completely cutting off bed mud using carrier layer enters water body, plants generating layer or active layer absorbs pollutants in sediments
And degradation.
Bed mud is fixed in the covering of its ecological blanket, and carrier layer is the stability for ensureing ecological blanket in water body, the ecology
Blanket does not completely completely cut off bed mud and water body, and some of the contaminants in bed mud can still be spread to water body.
Utility model content
The purpose of this utility model is to provide a kind of ecological blankets of in-situ immobilization polluted bed mud, and swelling is used by taking
Soil layer has isolation bed mud and water body, prevents the advantages of pollutant is spread to water body in bed mud as impervious barrier.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of in-situ immobilization pollution
The ecological blanket of bed mud, including submerged plant system, nutrient layer, the submerged plant system are provided with soil away from the side of nutrient layer
Work cloth, the geotextiles are fixedly installed bentonite bed, the setting of ecological blanket width direction both ends away from the side of nutrient layer
It is useful for connecting the wedge-shaped bending of adjacent two ecological blankets, be fixedly installed in the wedge shape bending matched with wedge-shaped bending
Bending is connected, conflict is overlapped between adjacent two ecological blankets and the connection bending of adjacent end portion is fastened.
By using above-mentioned technical proposal, be fixed on geotextiles bentonite bed contacted with water body after, because itself has
High-expansion and high water absorption ability, water permeability is low when moistening, and seal performance is excellent after overlap joint fastens between ecological blanket, by water body
Completely cut off with bed mud, prevents solidification, stabilized pollutants in sediments to water body and external diffusion, formation is polluted again.Wedge-shaped bending is just
The position that determines that overlapped when two ecological blankets overlap, not only having met that overlapped, width requirement ensures laying quality, but also avoids overlapping
Width is excessive, causes the waste of ecological blanket.Bending is connected convenient for the position of the wedge-shaped bending of identification and the stabilization of the wedge-shaped bending of holding
Property.Nutrient layer is set in geotextiles and submerged plant system is absorbed and degraded to the pollutant in bed mud, bed mud is repaiied
It is multiple with obvious effects, it takes into account the recovery of the ecosystem while preventing pollutants in sediments from entering water body and reaches the effect that water and soil is controlled altogether
Fruit.
The utility model is further arranged to：The geotextiles are fixed with woven cloth, the volume away from the side of nutrient layer
Woven fabric fixes bentonite bed with geotextiles using needle point method.
By using above-mentioned technical proposal, the crude fibre of geotextile layer is fixed on woven cloth from across bentonite bed, by three
A part is combined as a whole, and makes bentonite bed is uniform and stable to be fixed in ecological blanket, enhance ecological blanket shearing strength and
Tensile strength.
The utility model is further arranged to：The connection bending includes being set on the upside of ecological blanket width direction one end
First crimp and it is set to fourth crimp of the ecological blanket width direction on the downside of first crimp one end, the 4th crimp and the
The opposite side of one crimp matches.
By using above-mentioned technical proposal, it is laid with along its length after completing an ecological blanket, another life of lapped layup
When state blanket, after the 4th crimp is put into the first crimp, the connection of adjacent two ecological blankets is completed, will then be given birth to using a small amount of nail
State blanket is fixed.Connection type is simple, is laid with convenient for construction, while reducing the use of the fixing pieces such as iron nail, pin.
The utility model is further arranged to：The wedge shape bending part is away from the side of the first crimp and the 4th crimp difference
It is provided with the second crimp contradicted with wedge-shaped bending and third crimp.
By using above-mentioned technical proposal, connection bending part is set as the double-layer structure positioned at ecological blanket both sides, strengthens
The structural soundness of wedge-shaped bending part.
The utility model is further arranged to：The wedge shape bending is wedge structure, and the connection bending is that ductility is excellent
Good plastics.
By using above-mentioned technical proposal, the 4th crimp is pressed into the first crimp, wedge structure connection can enhance connection
Reliability prevents adjacent ecological blanket from being detached from wedge-shaped bending part.
The utility model is further arranged to：The submerged plant system is provided with surface layer away from the side of nutrient layer and knits
Object.
By using above-mentioned technical proposal, submerged plant system is fixed in ecological blanket by top fabric woven, and heavy water is avoided to plant
It is detached from ecological blanket during object system and nutrient layer construction usage, while being alternatively benthon and living environment is provided.
The utility model is further arranged to：The submerged plant system is provided with thin, water soluble away from the side of nutrient layer
Film.
By using above-mentioned technical proposal, water-soluble film can prevent submerged plant system in transport, work progress and support
The peeling of particle in layering, while water-soluble film meets water dissolution, is voluntarily dissolved after the completion of construction, does not interfere with submerged plant system
The normal function of system.
The utility model is further arranged to：The bentonite bed is filled with Na-bentonite soil particle.
By using above-mentioned technical proposal, the Na-bentonite soil layer coefficient of expansion is higher, and the performance for completely cutting off water body and bed mud is excellent
It is good, prevent pollutants in sediments diffusivity strong.
In conclusion the utility model has the advantages that：
1, be fixed on geotextiles bentonite bed contacted with water body after, because itself have high-expansion and high water absorption energy
Power, water permeability is low when moistening, and seal performance is excellent after overlap joint fastens between ecological blanket, and water body and bed mud are completely cut off, and prevents solid
To water body and external diffusion, formation is polluted again for change, stabilized pollutants in sediments.Nutrient layer and submerged plant are set in geotextiles
System is absorbed and is degraded to the pollutant in bed mud, apparent to the repairing effect of bed mud, and pollutants in sediments is prevented to enter water
The recovery of the ecosystem is taken into account while body and is achieved the effect that water and soil and is controlled altogether.
2, it is laid with after completing an ecological blanket, when another ecological blanket of lapped layup, the 4th crimp is put along its length
After entering the first crimp, the overlap joint for completing adjacent two ecological blankets fastens, and reuses a small amount of nail and fixes ecological blanket.Connection type
Simply, it is convenient for construction to be laid with.
Description of the drawings
Fig. 1 is a kind of schematic diagram of a layer structure of the ecological blanket of in-situ immobilization polluted bed mud；
Fig. 2 is a kind of attachment structure schematic diagram of the ecological blanket of in-situ immobilization polluted bed mud；
Fig. 3 is partial enlarged view at A in Fig. 2；
Fig. 4 is partial enlarged view at B in Fig. 2；
Fig. 5 is partial enlarged view at C in Fig. 2.
In figure, 1, woven cloth；2, bentonite bed；3, geotextiles；4, nutrient layer；5, submerged plant system；6, top fabric woven；
7, water-soluble film；8, bending is connected；81, the first crimp；82, the second crimp；83, third crimp；84, the 4th crimp；9, wedge
Shape bending.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.The identical attached drawing of wherein identical parts
Label indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to
It is the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and "outside" are referred respectively to towards or away from particular elements geometry
The direction at center.
Embodiment 1
A kind of ecological blanket of in-situ immobilization polluted bed mud, as shown in Figure 1, the ecological blanket of the utility model is distinguished from bottom to up
For bentonite bed 2, nutrient layer 4,5 up of three layers of submerged plant system.
As shown in Figure 1, bentonite bed 2 is the higher high-quality Na-bentonite soil particle of performance, bentonite bed 2 is swollen after absorbing water
It is swollen, bed mud and water body are completely cut off, and supporting function is provided to entire ecological blanket.Bentonite bed 2 is arranged with woven cloth 1, braiding
Cloth 1 is the polypropylene woven cloth of high intensity, has tensile strength and ductility, using its high-intensity performance as bentonite bed
The carrier of 2 particles provides it and plays limitation function necessary to waterproof action.It is provided with soil between bentonite bed 2 and nutrient layer 4
Work cloth 3, geotextiles 3 and woven cloth 1 are fixed bentonite clay particle by needling process.
As shown in Figure 1, the soil of suitable water plant, nutrient are provided in nutrient layer 4, the 4 heavy water of top setting of nutrient layer
Botanical system 5,5 top of submerged plant system are provided with top fabric woven 6, and submerged plant system 5 is fixed on nutrient by top fabric woven 6
4 top of layer, submerged plant system 5 absorbs the pollutant in bed mud by root system, and pollutant is decomposed and degraded, then
By periodically gathering in or removing water plant, reach the technique effect of pollutant in thoroughly removal riverbed.
As shown in Figure 1,5 top of submerged plant system is provided with top fabric woven 6, top fabric woven 6 is for covering and protecting down
Layer structure, while providing living environment for benthon.
As shown in Figure 1, being equipped with one layer of water-soluble film 7 in top fabric woven 6, water-soluble film 7 can be opposite by ecological blanket
Closing reduces the substance of submerged plant system 5 and nutrient layer 4 in transport, process of deployment and is lost in.After the completion of ecological blanket laying,
Water-soluble film 7 can be decomposed voluntarily, and growing environment is provided to submerged plant system 5.
As shown in Figures 2 and 3, using overlapped mode when the ecological blanket of in-situ immobilization polluted bed mud is laid with, lap-joint is equal
It is even to spread bentonite dry powder or bentonite clay, it is provided with wedge-shaped bending 9 at the 15cm of ecological blanket both sides.The gluing of wedge-shaped bending 9 has
Bending 8 is connected, connection bending 8 is the wedge structure being bonded with wedge-shaped bending 9, and connection bending 8 is excellent spring plastics, this implementation
The LDPE: Low-density polyethylene plastics for being in example.Connection bending 8 includes the first crimp being located on the upside of ecological blanket width direction the same end
81 and downside the second crimp 82, fit in ecological blanket among the second crimp 82 of the first crimp 81 and downside.
As shown in Figure 2 and Figure 4, connection bending 8 includes being located at ecological blanket width direction on the upside of 81 one end of the first crimp
Third crimp 83 and downside the 4th crimp 84, fit in ecological blanket among the 4th crimp 84 of third crimp 83 and downside.
As shown in Figure 2 and Figure 5, adjacent Liang Tiao ecological blankets lap-joint, the 4th crimp 84 deviate from the side of third crimp 83
It is inserted into and is bonded away from the side of the second crimp 83 with the first crimp 81.
A kind of ecological blanket of in-situ immobilization polluted bed mud, process of deployment are as follows：
It is laid with along its length after completing an ecological blanket, the 4th crimp 84 is pressed by another ecological blanket of lapped layup
After first crimp 81, the overlap joint for completing adjacent two ecological blankets fastens, and reuses appropriate nail and is fixed to ecological blanket.Connect bending
8 determine the lap width of two ecological blankets, are conducive to standardization overlap joint ecological blanket, have both met the installation needs of ecological blanket,
Lap width is efficiently determined again, to save the usage amount of ecological blanket in engineering.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (8)
1. a kind of ecological blanket of in-situ immobilization polluted bed mud, including submerged plant system (5), nutrient layer (4), it is characterised in that：
The submerged plant system (5) is provided with geotextiles (3) away from the side of nutrient layer (4), and the geotextiles (3) deviate from nutrient layer
(4) side is fixedly installed bentonite bed (2), and the ecological blanket width direction is provided at both ends with for connecting adjacent two lifes
The wedge-shaped bending (9) of state blanket is fixedly installed and wedge-shaped bending (9) matched connection bending on wedge shape bending (9)
(8), overlap joint conflict and the connection bending of adjacent end portion between adjacent two ecological blankets（8）It is fastened.
2. a kind of ecological blanket of in-situ immobilization polluted bed mud according to claim 1, it is characterised in that：The geotextiles
(3) side for deviating from nutrient layer (4) is fixed with woven cloth (1), and the woven cloth (1) is fixed with geotextiles (3) using needle point method
Bentonite bed (2).
3. a kind of ecological blanket of in-situ immobilization polluted bed mud according to claim 1, it is characterised in that：The connection bending
(8) include the first crimp (81) being set on the upside of ecological blanket width direction one end and be set to ecological blanket width direction away from the
The 4th crimp (84) on the downside of one crimp (81) one end, the 4th crimp (84) side opposite with the first crimp (81) match
It closes.
4. a kind of ecological blanket of in-situ immobilization polluted bed mud according to claim 3, it is characterised in that：The wedge shape bending
(9) at away from the side of the first crimp (81) and the 4th crimp (84) be respectively arranged with it is the second of wedge shape bending (9) conflict curved
Side (82) and third crimp (83).
5. a kind of ecological blanket of in-situ immobilization polluted bed mud according to claim 3, it is characterised in that：The wedge shape bending
(9) it is wedge structure, the connection bending (8) is the plastics of excellent spring.
6. a kind of ecological blanket of in-situ immobilization polluted bed mud according to claim 1, it is characterised in that：The submerged plant
System (5) is provided with top fabric woven (6) away from the side of nutrient layer (4).
7. a kind of ecological blanket of in-situ immobilization polluted bed mud according to claim 1, it is characterised in that：The submerged plant
System (5) is provided with water-soluble film (7) away from the side of nutrient layer (4).
8. a kind of ecological blanket of in-situ immobilization polluted bed mud according to claim 1, it is characterised in that：The bentonite bed
(2) it is filled with Na-bentonite soil particle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721655516.5U CN207608477U (en) | 2017-12-02 | 2017-12-02 | A kind of ecological blanket of in-situ immobilization polluted bed mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721655516.5U CN207608477U (en) | 2017-12-02 | 2017-12-02 | A kind of ecological blanket of in-situ immobilization polluted bed mud |
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| Publication Number | Publication Date |
|---|---|
| CN207608477U true CN207608477U (en) | 2018-07-13 |
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ID=62797195
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721655516.5U Active CN207608477U (en) | 2017-12-02 | 2017-12-02 | A kind of ecological blanket of in-situ immobilization polluted bed mud |
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| CN (1) | CN207608477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111392998A (en) * | 2020-03-25 | 2020-07-10 | 北京邦源环保科技股份有限公司 | Submerged multifunctional ecological blanket for treating black and odorous bottom mud in river channel flow domain and use method thereof |
| CN111792808A (en) * | 2020-07-22 | 2020-10-20 | 天津中联格林科技发展有限公司 | Geotechnical barrier material for in-situ covering of bottom mud and preparation process |
-
2017
- 2017-12-02 CN CN201721655516.5U patent/CN207608477U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111392998A (en) * | 2020-03-25 | 2020-07-10 | 北京邦源环保科技股份有限公司 | Submerged multifunctional ecological blanket for treating black and odorous bottom mud in river channel flow domain and use method thereof |
| CN111792808A (en) * | 2020-07-22 | 2020-10-20 | 天津中联格林科技发展有限公司 | Geotechnical barrier material for in-situ covering of bottom mud and preparation process |
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